https://doi.org/10.1140/epjp/s13360-025-06743-w
Regular Article
Self energy in Kerr-Sen space-time incorporated to overspinning and overcharging problems
Faculty of Engineering and Natural Sciences, İstanbul Okan University, 34959, Tuzla, İstanbul, Turkey
Received:
19
June
2025
Accepted:
7
August
2025
Published online:
20
August
2025
Previous attempts to overspin or overcharge Kerr-Sen black holes have been incomplete, as they neglect back-reaction effects. In this study, we incorporate the self-energy of perturbations, resulting from the induced increase in the angular velocity and the electrostatic potential of the event horizon, as described in a seminal work by Will. Our analysis demonstrates that Kerr-Sen black holes cannot be overspun or overcharged by perturbations that satisfy the null energy condition, within a comprehensive second-order framework that includes the self-energy of the perturbations.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
